There usually is very little snow there by the end of June. I would say the trails are usually snow free by about the end of May. But we had a crazy winter here in So NV in 2005 with record rains in Vegas and huge snows in the mountains.
After hiking Mt. Charleston countless times in warm weather, I did my first winter climb up through the Big Falls area last April. I'm hooked and can't wait for the snow to come back so I can do it again!
"Got tight last night on absinthe and did knife tricks. Great success shooting the knife into the piano. The woodworms are so bad and eat hell out of all furniture that you can always claim the woodworms did it."